[PATCH 1/7] stddev: make it selectable via Kconfig

[PATCH 1/7] stddev: make it selectable via Kconfig

[Jean-Christophe PLAGNIOL-VILLARD]

enable is by default for simple and hush
we do not need to NO_SHELL

this allow to save 1KiB

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
---
 commands/Makefile |    2 +-
 common/Kconfig    |    5 +++++
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/commands/Makefile b/commands/Makefile
index 54191b4..e9157bf 100644
--- a/commands/Makefile
+++ b/commands/Makefile
@@ -1,4 +1,4 @@
-obj-y				+= stddev.o
+obj-$(CONFIG_STDDEV)		+= stddev.o
 obj-$(CONFIG_CMD_BOOTM)		+= bootm.o
 obj-$(CONFIG_CMD_UIMAGE)	+= uimage.o
 obj-$(CONFIG_CMD_LINUX16)	+= linux16.o
diff --git a/common/Kconfig b/common/Kconfig
index 1c996aa..c6f1afa 100644
--- a/common/Kconfig
+++ b/common/Kconfig
@@ -50,6 +50,9 @@ config BINFMT
 config GLOBALVAR
 	bool
 
+config STDDEV
+	bool
+
 menu "General Settings              "
 
 config LOCALVERSION
@@ -295,6 +298,7 @@ choice
 		select COMMAND_SUPPORT
 		select PARAMETER
 		select BINFMT
+		select STDDEV
 		help
 		  Enable hush support. This is the most advanced shell available
 		  for barebox.
@@ -304,6 +308,7 @@ choice
 		select ENVIRONMENT_VARIABLES
 		select COMMAND_SUPPORT
 		select PARAMETER
+		select STDDEV
 		help
 		  simple shell. No if/then, no return values from commands, no loops
 
-- 
1.7.10

[PATCH 2/7] decompress_unlzo: define decompress_unlzo as decompress

[Jean-Christophe PLAGNIOL-VILLARD]

so we can use decompress in the decompressor
this will simplify multi decompress support

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
---
 lib/decompress_unlzo.c |    1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/decompress_unlzo.c b/lib/decompress_unlzo.c
index 0e6a7ad..56abfc6 100644
--- a/lib/decompress_unlzo.c
+++ b/lib/decompress_unlzo.c
@@ -289,3 +289,4 @@ exit_1:
 exit:
 	return ret;
 }
+#define decompress decompress_unlzo
-- 
1.7.10

[PATCH 3/7] compressed image: factorise compressor type

[Jean-Christophe PLAGNIOL-VILLARD]

This will simplify to support of multi compressor support such as gzip, lzma,
xz.

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
---
 Makefile                   |   12 +++++++-----
 arch/arm/cpu/start.c       |    9 ++++++---
 arch/arm/lib/Makefile      |    2 +-
 arch/arm/lib/barebox.lds.S |    2 +-
 common/Kconfig             |   17 ++++++++++++++---
 5 files changed, 29 insertions(+), 13 deletions(-)

diff --git a/Makefile b/Makefile
index e0a3c07..0b3da03 100644
--- a/Makefile
+++ b/Makefile
@@ -715,20 +715,22 @@ barebox-uncompressed: $(barebox-lds) $(barebox-head) $(barebox-common) $(kallsym
 barebox-uncompressed.bin: barebox-uncompressed
 	$(call if_changed,objcopy)
 
+suffix_$(CONFIG_IMAGE_COMPRESSION_LZO)	= lzo
+
 barebox-uncompressed.bin.lzo: barebox-uncompressed.bin
 	@echo "  LZO    " $@
 	$(Q)lzop -f -9 -o $@ barebox-uncompressed.bin
 
-piggy.lzo.o: barebox-uncompressed.bin.lzo $(src)/piggy.lzo.S
+piggy.$(suffix_y).o: barebox-uncompressed.bin.$(suffix_y) $(src)/piggy.$(suffix_y).S
 	@echo "  CC     " $@
-	$(Q)$(CC) $(CFLAGS) $(CPPFLAGS) -c $(src)/piggy.lzo.S -o $@
+	$(Q)$(CC) $(CFLAGS) $(CPPFLAGS) -c $(src)/piggy.$(suffix_y).S -o $@
 
-ifdef CONFIG_IMAGE_COMPRESSION_LZO
-barebox: piggy.lzo.o
+ifdef CONFIG_IMAGE_COMPRESSION
+barebox: piggy.$(suffix_y).o
 	@echo "  LD     " $@
 	$(Q)$(LD) $(LDFLAGS) $(LDFLAGS_barebox) -o $@ \
 		-T $(barebox-compressed-lds) \
-		--start-group $(barebox-common) piggy.lzo.o --end-group
+		--start-group $(barebox-common) piggy.$(suffix_y).o --end-group
 else
 barebox: $(barebox-lds) $(barebox-head) $(barebox-common) $(kallsyms.o) FORCE
 	$(call barebox-modpost)
diff --git a/arch/arm/cpu/start.c b/arch/arm/cpu/start.c
index 6743804..18c5c83 100644
--- a/arch/arm/cpu/start.c
+++ b/arch/arm/cpu/start.c
@@ -28,7 +28,7 @@
 #include <asm-generic/memory_layout.h>
 #include <asm/sections.h>
 
-#ifdef CONFIG_IMAGE_COMPRESSION_LZO
+#ifdef CONFIG_IMAGE_COMPRESSION
 void __naked __section(.text_head_entry) compressed_start(void)
 {
 	barebox_arm_head();
@@ -101,7 +101,10 @@ extern void *input_data;
 extern void *input_data_end;
 
 #define STATIC static
+
+#ifdef CONFIG_IMAGE_COMPRESSION_LZO
 #include "../../../lib/decompress_unlzo.c"
+#endif
 
 void barebox_uncompress(void *compressed_start, unsigned int len)
 {
@@ -112,7 +115,7 @@ void barebox_uncompress(void *compressed_start, unsigned int len)
 	else
 		barebox = (void *)TEXT_BASE;
 
-	decompress_unlzo((void *)compressed_start,
+	decompress((void *)compressed_start,
 			len,
 			NULL, NULL,
 			(void *)TEXT_BASE, NULL, NULL);
@@ -158,7 +161,7 @@ void __naked __section(.text_ll_return) board_init_lowlevel_return(void)
 	/* flush I-cache before jumping to the copied binary */
 	__asm__ __volatile__("mcr p15, 0, %0, c7, c5, 0" : : "r" (0));
 
-	if (IS_ENABLED(CONFIG_IMAGE_COMPRESSION_LZO)) {
+	if (IS_ENABLED(CONFIG_IMAGE_COMPRESSION)) {
 		compressed_start = (uint32_t)&input_data - offset;
 		compressed_end = (uint32_t)&input_data_end - offset;
 		len = compressed_end - compressed_start;
diff --git a/arch/arm/lib/Makefile b/arch/arm/lib/Makefile
index 044d3e6..1b6f7f4 100644
--- a/arch/arm/lib/Makefile
+++ b/arch/arm/lib/Makefile
@@ -21,4 +21,4 @@ obj-$(CONFIG_ARM_OPTIMZED_STRING_FUNCTIONS)	+= memset.o
 obj-$(CONFIG_ARM_UNWIND) += unwind.o
 obj-$(CONFIG_MODULES) += module.o
 extra-y += barebox.lds
-extra-$(CONFIG_IMAGE_COMPRESSION_LZO) += barebox-compressed.lds
+extra-$(CONFIG_IMAGE_COMPRESSION) += barebox-compressed.lds
diff --git a/arch/arm/lib/barebox.lds.S b/arch/arm/lib/barebox.lds.S
index b415830..b22cf98 100644
--- a/arch/arm/lib/barebox.lds.S
+++ b/arch/arm/lib/barebox.lds.S
@@ -31,7 +31,7 @@ SECTIONS
 {
 	. = TEXT_BASE;
 
-#ifndef CONFIG_IMAGE_COMPRESSION_LZO
+#ifndef CONFIG_IMAGE_COMPRESSION
 	PRE_IMAGE
 #endif
 	. = ALIGN(4);
diff --git a/common/Kconfig b/common/Kconfig
index c6f1afa..8437e1c 100644
--- a/common/Kconfig
+++ b/common/Kconfig
@@ -99,9 +99,20 @@ menu "memory layout                 "
 config HAVE_IMAGE_COMPRESSION
 	bool
 
+config IMAGE_COMPRESSION
+	bool "Compressed image"
+
+if IMAGE_COMPRESSION
+
+choice
+	prompt "Compression"
+
 config IMAGE_COMPRESSION_LZO
-	depends on HAVE_IMAGE_COMPRESSION
-	bool "lzo compressed image"
+	bool "lzo"
+
+endchoice
+
+endif
 
 config MMU
 	bool "Enable MMU"
@@ -185,7 +196,7 @@ config MALLOC_SIZE
 	prompt "malloc area size"
 
 config HEAD_TEXT_BASE
-	depends on MEMORY_LAYOUT_FIXED && IMAGE_COMPRESSION_LZO
+	depends on MEMORY_LAYOUT_FIXED && IMAGE_COMPRESSION
 	hex
 	prompt "HEAD_TEXT_BASE"
 endmenu
-- 
1.7.10

[PATCH 4/7] decompressor: import malloc/free implementation for linux 3.4

[Jean-Christophe PLAGNIOL-VILLARD]

This is need for gunzip support

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
---
 include/linux/decompress/mm.h |   68 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 68 insertions(+)
 create mode 100644 include/linux/decompress/mm.h

diff --git a/include/linux/decompress/mm.h b/include/linux/decompress/mm.h
new file mode 100644
index 0000000..0c35411
--- /dev/null
+++ b/include/linux/decompress/mm.h
@@ -0,0 +1,68 @@
+/*
+ * linux/compr_mm.h
+ *
+ * Memory management for pre-boot and ramdisk uncompressors
+ *
+ * Authors: Alain Knaff <alain@knaff.lu>
+ *
+ */
+
+#ifndef DECOMPR_MM_H
+#define DECOMPR_MM_H
+
+#ifdef STATIC
+
+/* Code active when included from pre-boot environment: */
+
+/*
+ * Some architectures want to ensure there is no local data in their
+ * pre-boot environment, so that data can arbitrarily relocated (via
+ * GOT references).  This is achieved by defining STATIC_RW_DATA to
+ * be null.
+ */
+#ifndef STATIC_RW_DATA
+#define STATIC_RW_DATA static
+#endif
+
+/* A trivial malloc implementation, adapted from
+ *  malloc by Hannu Savolainen 1993 and Matthias Urlichs 1994
+ */
+STATIC_RW_DATA unsigned long malloc_ptr;
+STATIC_RW_DATA int malloc_count;
+
+static void *malloc(int size)
+{
+	void *p;
+
+	if (size < 0)
+		return NULL;
+	if (!malloc_ptr)
+		malloc_ptr = free_mem_ptr;
+
+	malloc_ptr = (malloc_ptr + 3) & ~3;     /* Align */
+
+	p = (void *)malloc_ptr;
+	malloc_ptr += size;
+
+	if (free_mem_end_ptr && malloc_ptr >= free_mem_end_ptr)
+		return NULL;
+
+	malloc_count++;
+	return p;
+}
+
+static void free(void *where)
+{
+	malloc_count--;
+	if (!malloc_count)
+		malloc_ptr = free_mem_ptr;
+}
+
+#define large_malloc(a) malloc(a)
+#define large_free(a) free(a)
+
+#define INIT
+
+#endif /* STATIC */
+
+#endif /* DECOMPR_MM_H */
-- 
1.7.10

[PATCH 5/7] ARM: add early malloc support needed by the decompressor

[Jean-Christophe PLAGNIOL-VILLARD]

This is not needed by lzo but by gunzip, xz and others.

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
---
 arch/arm/cpu/start.c |    7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/arch/arm/cpu/start.c b/arch/arm/cpu/start.c
index 18c5c83..8ab6fdc 100644
--- a/arch/arm/cpu/start.c
+++ b/arch/arm/cpu/start.c
@@ -28,6 +28,9 @@
 #include <asm-generic/memory_layout.h>
 #include <asm/sections.h>
 
+unsigned long free_mem_ptr;
+unsigned long free_mem_end_ptr;
+
 #ifdef CONFIG_IMAGE_COMPRESSION
 void __naked __section(.text_head_entry) compressed_start(void)
 {
@@ -158,6 +161,10 @@ void __naked __section(.text_ll_return) board_init_lowlevel_return(void)
 	/* clear bss */
 	memset(__bss_start, 0, __bss_stop - __bss_start);
 
+	/* set 128 KiB before the STACK_BASE - 16 address for early malloc */
+	free_mem_ptr = STACK_BASE - 0x20000 - 16;
+	free_mem_end_ptr = STACK_BASE - 16;
+
 	/* flush I-cache before jumping to the copied binary */
 	__asm__ __volatile__("mcr p15, 0, %0, c7, c5, 0" : : "r" (0));
 
-- 
1.7.10

[PATCH 6/7] compressed: allow to link only what is needed

[Jean-Christophe PLAGNIOL-VILLARD]

Today we link to whole barebox and rely on gcc to cleanup via it's garbage
collector.

Now we specify only what is needed and introduce a new directory with source
only related to the compressed target.

The architecture will have to specify the needed file for the link via comp-arch-y.

Import string functions from linux 3.4 (arch/arm/boot/compressed/string.c) and
implement a dummy panic.

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
---
 Makefile            |   16 ++++---
 arch/arm/Makefile   |    7 +++
 compressed/Makefile |    5 ++
 compressed/misc.c   |   10 ++++
 compressed/string.c |  127 +++++++++++++++++++++++++++++++++++++++++++++++++++
 5 files changed, 159 insertions(+), 6 deletions(-)
 create mode 100644 compressed/Makefile
 create mode 100644 compressed/misc.c
 create mode 100644 compressed/string.c

diff --git a/Makefile b/Makefile
index 0b3da03..d6a3ae5 100644
--- a/Makefile
+++ b/Makefile
@@ -412,6 +412,7 @@ scripts: scripts_basic include/config/auto.conf
 
 # Objects we will link into barebox / subdirs we need to visit
 common-y		:= common/ drivers/ commands/ lib/ crypto/ net/ fs/
+comp-y			:= compressed/
 
 ifeq ($(dot-config),1)
 # Read in config
@@ -474,7 +475,7 @@ CFLAGS += $(call cc-option,-Wno-pointer-sign,)
 # this default value
 export KBUILD_IMAGE ?= barebox
 
-barebox-dirs	:= $(patsubst %/,%,$(filter %/, $(common-y)))
+barebox-dirs	:= $(patsubst %/,%,$(filter %/, $(common-y) $(comp-y)))
 
 barebox-alldirs	:= $(sort $(barebox-dirs) $(patsubst %/,%,$(filter %/, \
 		     $(common-n) $(common-) \
@@ -482,6 +483,8 @@ barebox-alldirs	:= $(sort $(barebox-dirs) $(patsubst %/,%,$(filter %/, \
 		     $(net-n)  $(net-)  $(libs-n)    $(libs-))))
 
 common-y	:= $(patsubst %/, %/built-in.o, $(common-y))
+comp-y		:= $(patsubst %/, %/built-in.o, $(comp-y))
+comp-arch-y	:= $(patsubst %/, %/built-in.o, $(comp-arch-y))
 
 # Build barebox
 # ---------------------------------------------------------------------------
@@ -509,8 +512,9 @@ common-y	:= $(patsubst %/, %/built-in.o, $(common-y))
 #
 # System.map is generated to document addresses of all kernel symbols
 
+barebox-comp := $(comp-y)
 barebox-common := $(common-y)
-barebox-all    := $(barebox-common)
+barebox-all    := $(barebox-common) $(barebox-comp)
 barebox-lds    := $(lds-y)
 barebox-compressed-lds    := $(lds-compressed-y)
 
@@ -726,11 +730,11 @@ piggy.$(suffix_y).o: barebox-uncompressed.bin.$(suffix_y) $(src)/piggy.$(suffix_
 	$(Q)$(CC) $(CFLAGS) $(CPPFLAGS) -c $(src)/piggy.$(suffix_y).S -o $@
 
 ifdef CONFIG_IMAGE_COMPRESSION
-barebox: piggy.$(suffix_y).o
-	@echo "  LD     " $@
+barebox: piggy.$(suffix_y).o $(barebox-comp)
+	@echo "  LD     " $@ $(barebox-comp)
 	$(Q)$(LD) $(LDFLAGS) $(LDFLAGS_barebox) -o $@ \
 		-T $(barebox-compressed-lds) \
-		--start-group $(barebox-common) piggy.$(suffix_y).o --end-group
+		--start-group $(barebox-comp) $(comp-arch-y) piggy.$(suffix_y).o --end-group
 else
 barebox: $(barebox-lds) $(barebox-head) $(barebox-common) $(kallsyms.o) FORCE
 	$(call barebox-modpost)
@@ -743,7 +747,7 @@ barebox.srec: barebox
 
 # The actual objects are generated when descending,
 # make sure no implicit rule kicks in
-$(sort $(barebox-head) $(barebox-common) ) $(barebox-lds): $(barebox-dirs) ;
+$(sort $(barebox-head) $(barebox-common) $(barebox-comp) ) $(barebox-lds): $(barebox-dirs) ;
 
 # Handle descending into subdirectories listed in $(barebox-dirs)
 # Preset locale variables to speed up the build process. Limit locale
diff --git a/arch/arm/Makefile b/arch/arm/Makefile
index a93c4d5..0c666dc 100644
--- a/arch/arm/Makefile
+++ b/arch/arm/Makefile
@@ -207,6 +207,13 @@ endif
 common-y += $(BOARD) $(MACH)
 common-y += arch/arm/lib/ arch/arm/cpu/
 
+# those file will not be recompibled
+# we assume they are already compiled
+# for the normal barebox
+comp-arch-y += arch/arm/lib/lib1funcs.o
+comp-arch-y += arch/arm/lib/div0.o
+comp-arch-y += arch/arm/cpu/start.o
+
 lds-y	:= arch/arm/lib/barebox.lds
 lds-compressed-y := arch/arm/lib/barebox-compressed.lds
 
diff --git a/compressed/Makefile b/compressed/Makefile
new file mode 100644
index 0000000..720a0cb
--- /dev/null
+++ b/compressed/Makefile
@@ -0,0 +1,5 @@
+#
+# only unsed by the decompressor
+#
+obj-y += misc.o
+obj-y += string.o
diff --git a/compressed/misc.c b/compressed/misc.c
new file mode 100644
index 0000000..7bb0f50
--- /dev/null
+++ b/compressed/misc.c
@@ -0,0 +1,10 @@
+#include <common.h>
+#include <init.h>
+#include <linux/types.h>
+#include <linux/string.h>
+#include <linux/ctype.h>
+
+void __noreturn panic(const char *fmt, ...)
+{
+	while(1);
+}
diff --git a/compressed/string.c b/compressed/string.c
new file mode 100644
index 0000000..6787e82
--- /dev/null
+++ b/compressed/string.c
@@ -0,0 +1,127 @@
+/*
+ * arch/arm/boot/compressed/string.c
+ *
+ * Small subset of simple string routines
+ */
+
+#include <linux/types.h>
+
+void *memcpy(void *__dest, __const void *__src, size_t __n)
+{
+	int i = 0;
+	unsigned char *d = (unsigned char *)__dest, *s = (unsigned char *)__src;
+
+	for (i = __n >> 3; i > 0; i--) {
+		*d++ = *s++;
+		*d++ = *s++;
+		*d++ = *s++;
+		*d++ = *s++;
+		*d++ = *s++;
+		*d++ = *s++;
+		*d++ = *s++;
+		*d++ = *s++;
+	}
+
+	if (__n & 1 << 2) {
+		*d++ = *s++;
+		*d++ = *s++;
+		*d++ = *s++;
+		*d++ = *s++;
+	}
+
+	if (__n & 1 << 1) {
+		*d++ = *s++;
+		*d++ = *s++;
+	}
+
+	if (__n & 1)
+		*d++ = *s++;
+
+	return __dest;
+}
+
+void *memmove(void *__dest, __const void *__src, size_t count)
+{
+	unsigned char *d = __dest;
+	const unsigned char *s = __src;
+
+	if (__dest == __src)
+		return __dest;
+
+	if (__dest < __src)
+		return memcpy(__dest, __src, count);
+
+	while (count--)
+		d[count] = s[count];
+	return __dest;
+}
+
+size_t strlen(const char *s)
+{
+	const char *sc = s;
+
+	while (*sc != '\0')
+		sc++;
+	return sc - s;
+}
+
+int memcmp(const void *cs, const void *ct, size_t count)
+{
+	const unsigned char *su1 = cs, *su2 = ct, *end = su1 + count;
+	int res = 0;
+
+	while (su1 < end) {
+		res = *su1++ - *su2++;
+		if (res)
+			break;
+	}
+	return res;
+}
+
+int strcmp(const char *cs, const char *ct)
+{
+	unsigned char c1, c2;
+	int res = 0;
+
+	do {
+		c1 = *cs++;
+		c2 = *ct++;
+		res = c1 - c2;
+		if (res)
+			break;
+	} while (c1);
+	return res;
+}
+
+void *memchr(const void *s, int c, size_t count)
+{
+	const unsigned char *p = s;
+
+	while (count--)
+		if ((unsigned char)c == *p++)
+			return (void *)(p - 1);
+	return NULL;
+}
+
+char *strchr(const char *s, int c)
+{
+	while (*s != (char)c)
+		if (*s++ == '\0')
+			return NULL;
+	return (char *)s;
+}
+
+#undef memset
+
+void *memset(void *s, int c, size_t count)
+{
+	char *xs = s;
+	while (count--)
+		*xs++ = c;
+	return s;
+}
+
+void __memzero(void *s, size_t count)
+{
+	memset(s, 0, count);
+}
-- 
1.7.10

[PATCH 7/7] compressed image: add gzip support

[Jean-Christophe PLAGNIOL-VILLARD]

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
---
 Makefile                 |    7 ++++++-
 arch/arm/cpu/start.c     |    4 ++++
 common/Kconfig           |    3 +++
 lib/decompress_inflate.c |    1 +
 piggy.gzip.S             |    6 ++++++
 5 files changed, 20 insertions(+), 1 deletion(-)
 create mode 100644 piggy.gzip.S

diff --git a/Makefile b/Makefile
index d6a3ae5..1003786 100644
--- a/Makefile
+++ b/Makefile
@@ -719,8 +719,13 @@ barebox-uncompressed: $(barebox-lds) $(barebox-head) $(barebox-common) $(kallsym
 barebox-uncompressed.bin: barebox-uncompressed
 	$(call if_changed,objcopy)
 
+suffix_$(CONFIG_IMAGE_COMPRESSION_GZIP) = gzip
 suffix_$(CONFIG_IMAGE_COMPRESSION_LZO)	= lzo
 
+barebox-uncompressed.bin.gzip: barebox-uncompressed.bin
+	@echo "  GZIP   " $@
+	$(Q)gzip -n -9 -c barebox-uncompressed.bin > $@
+
 barebox-uncompressed.bin.lzo: barebox-uncompressed.bin
 	@echo "  LZO    " $@
 	$(Q)lzop -f -9 -o $@ barebox-uncompressed.bin
@@ -1039,7 +1044,7 @@ CLEAN_FILES +=	barebox System.map include/generated/barebox_default_env.h \
 		.tmp_kallsyms* barebox_default_env* barebox.ldr \
 		scripts/bareboxenv-target \
 		Doxyfile.version barebox.srec barebox.s5p \
-		barebox-uncompressed barebox-uncompressed.bin barebox-uncompressed.bin.lzo
+		barebox-uncompressed barebox-uncompressed.bin*
 
 # Directories & files removed with 'make mrproper'
 MRPROPER_DIRS  += include/config include2 usr/include
diff --git a/arch/arm/cpu/start.c b/arch/arm/cpu/start.c
index 8ab6fdc..8e63523 100644
--- a/arch/arm/cpu/start.c
+++ b/arch/arm/cpu/start.c
@@ -109,6 +109,10 @@ extern void *input_data_end;
 #include "../../../lib/decompress_unlzo.c"
 #endif
 
+#ifdef CONFIG_IMAGE_COMPRESSION_GZIP
+#include "../../../../lib/decompress_inflate.c"
+#endif
+
 void barebox_uncompress(void *compressed_start, unsigned int len)
 {
 	void (*barebox)(void);
diff --git a/common/Kconfig b/common/Kconfig
index 8437e1c..702a0bd 100644
--- a/common/Kconfig
+++ b/common/Kconfig
@@ -110,6 +110,9 @@ choice
 config IMAGE_COMPRESSION_LZO
 	bool "lzo"
 
+config IMAGE_COMPRESSION_GZIP
+	bool "gzip"
+
 endchoice
 
 endif
diff --git a/lib/decompress_inflate.c b/lib/decompress_inflate.c
index 526d6a1..5c1ebb6 100644
--- a/lib/decompress_inflate.c
+++ b/lib/decompress_inflate.c
@@ -4,6 +4,7 @@
 /* prevent inclusion of _LINUX_KERNEL_H in pre-boot environment: lots
  * errors about console_printk etc... on ARM */
 #define _LINUX_KERNEL_H
+#include <linux/decompress/mm.h>
 
 #include "zlib_inflate/inftrees.c"
 #include "zlib_inflate/inffast.c"
diff --git a/piggy.gzip.S b/piggy.gzip.S
new file mode 100644
index 0000000..2ca7d78
--- /dev/null
+++ b/piggy.gzip.S
@@ -0,0 +1,6 @@
+	.section .piggydata,#alloc
+	.globl  input_data
+input_data:
+	.incbin "barebox-uncompressed.bin.gzip"
+	.globl  input_data_end
+input_data_end:
-- 
1.7.10

[PATCH 1/7] stddev: make it selectable via Kconfig

[Baruch Siach]

Hi Jean-Christophe,

On Sun, Jul 22, 2012 at 03:18:56PM +0200, Jean-Christophe PLAGNIOL-VILLARD wrote:
> enable is by default for simple and hush
> we do not need to NO_SHELL
> 
> this allow to save 1KiB
> 
> Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>

Wrong list. This series was intended for the Barebox list.

baruch

-- 
     http://baruch.siach.name/blog/                  ~. .~   Tk Open Systems
=}------------------------------------------------ooO--U--Ooo------------{=
   - baruch at tkos.co.il - tel: +972.2.679.5364, http://www.tkos.co.il -

[PATCH 1/7] stddev: make it selectable via Kconfig

[Thomas Petazzoni]

Le Sun, 22 Jul 2012 15:18:56 +0200,
Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> a ?crit :

> enable is by default for simple and hush
> we do not need to NO_SHELL
> 
> this allow to save 1KiB
> 
> Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
> ---
>  commands/Makefile |    2 +-
>  common/Kconfig    |    5 +++++
>  2 files changed, 6 insertions(+), 1 deletion(-)

Hum, I guess this should have been sent to the barebox@ mailing list,
rather than the linux-arm-kernel@ mailing list, no?

Thomas
-- 
Thomas Petazzoni, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com

[PATCH 1/7] stddev: make it selectable via Kconfig

[Jean-Christophe PLAGNIOL-VILLARD]

On 15:50 Sun 22 Jul     , Thomas Petazzoni wrote:
> Le Sun, 22 Jul 2012 15:18:56 +0200,
> Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> a ?crit :
> 
> > enable is by default for simple and hush
> > we do not need to NO_SHELL
> > 
> > this allow to save 1KiB
> > 
> > Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
> > ---
> >  commands/Makefile |    2 +-
> >  common/Kconfig    |    5 +++++
> >  2 files changed, 6 insertions(+), 1 deletion(-)
> 
> Hum, I guess this should have been sent to the barebox@ mailing list,
> rather than the linux-arm-kernel@ mailing list, no?
yeap I send it to the wrong ml

Best Regards,